TPR and similar materials PVC, silica gel identification method

- May 12, 2018-

It can be distinguished by burning, observing flames, smoke, burning odors and residues. Burning look, the root of the flame is green is PVC, the root is blue for TPR or silica gel; residue to see, white powder (SiO2 silica) is more silica gel; smoke taste, smoke is lighter Silicone, thick black is TPR; burning odor, TPR burning aroma, silicone burning odor is relatively light, PVC burning chlorine odor.